/*********************************************************************************************************
**
**                                   GJB 标准测试集
**
**                               Copyright All Rights Reserved
**
**--------------文件信息--------------------------------------------------------------------------------
**
** 文   件   名: gjb_S0100902GN_1.c
**
** 文件创建日期: 2021 年 1 月 22 日
**
** 描        述: 以永久阻塞方式等待条件变量功能测试
*********************************************************************************************************/
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <signal.h>

//#include "gjb.h"

static  int   err_count_cv_9021;

pthread_cond_t cond_cv_9021 = PTHREAD_COND_INITIALIZER;                          /* cond used by the two threads */


pthread_mutex_t mutex_cv_9021 = PTHREAD_MUTEX_INITIALIZER;                       /* cond used by the two threads */

void * thread_cv_9021(void *tmp)
{
    int    rc = 0;

    /*
     * acquire the mutex
     */
    rc  = pthread_mutex_lock(&mutex_cv_9021);
    if(rc != 0) {
        printf("test failed.pthread_mutex_lock\n");
        err_count_cv_9021++;
        return (void *)-1;
    }

    /*
     * Wait on the cond var. This will not return, as nobody signals
     */
    rc = pthread_cond_wait(&cond_cv_9021, &mutex_cv_9021);
    if(rc == 0) {
        printf("test pass,pthread_cond_wait return 0\n");

    } else {
        printf("test failed.pthread_cond_wait should return 0 , but return %d\n",rc);
        err_count_cv_9021++;
        return (void *)-1;
    }

    rc = pthread_mutex_unlock(&mutex_cv_9021);
    if(rc != 0) {
        printf("test failed.pthread_mutex_unlock\n");
        err_count_cv_9021++;
        return (void *)-1;
    }

    return NULL;
}

// int gjb_S0100902GN_1(int argc, char **argv)
int gjb_S0100902GN_1(int argc, char **argv)
{
    pthread_t low_id;
    int       rc = 0;

    /*
     * Create a new thread with default attributes
     */
    rc = pthread_create(&low_id, NULL, thread_cv_9021, NULL);
    if(rc != 0) {
        printf("pthread_create\n");
        goto __errno_handle;
    }

    /*
     * Let the other thread run
     */
    sleep(2);


    // pthread_kill(low_id, SIGTERM);
    // pthread_kill(low_id, SIGKILL);
    pthread_join(low_id, NULL);
    if (err_count_cv_9021) {
      goto __errno_handle;
    }

    printf("<RSLT>..................................................[(0)]\n \n \n");

    return  (0);

__errno_handle:
    printf("<RSLT>..................................................[(-1)]\n \n \n");
    return  (-1);
}




